ZIP code profile · 2024 county data

ZIP Code 63366

St. Charles County, Missouri: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-08-24

52,746
Population (ZIP)
0
Violent rate /100K (county)
0
Property rate /100K (county)

Is ZIP code 63366 safe? Honest data snapshot

ZIP code 63366 sits within St. Charles County, MO, in which law-enforcement agencies did not report complete 2024 data to the FBI UCR Program. The county figures below cover only the agencies that submitted, so they are not a measure of crime in this area and no comparison to the national average is drawn from them.

ZIP 63366 is the largest ZIP in St. Charles County by population, 52,746 residents (#2 of 14 county ZIPs), across 69.28 square miles (761/sq mi). For a full breakdown of St. Charles County's crime categories and year-over-year trend, see the St. Charles County crime page linked below.

ZIP 63366 has no FBI-native crime rate (postal codes are not police jurisdictions). Figures above use the St. Charles County proxy where reported; see methodology for the ZCTA plurality map. Methodology.

ZIP 63366 Census context

These are ZIP/ZCTA demographic estimates, separate from the county-level FBI proxy above. They describe the local settlement, not a crime rate.

Median household income
$91,698
Median age
39.7 years
Owner-occupied homes
81%
Occupied homes
20,378

Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, and occupied housing tenure).

ZIP 63366 settlement vs St. Charles County

ZIP 63366 itself is about 761 people per Census sq mi across 69.3 sq mi (52,746 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 63366 accounts for roughly 13% of the county reporting population (52,746 of 405,262).

St. Charles County's 2024 UCR book concentrates in aggravated assault (100% of 1 offenses; mix index 10,000). ZIP 63366 inherits that county mix, not a postal-native split.

Settlement lines use Census ZCTA figures only; incomplete county agency coverage blocks any UCR mix or rate desk for this ZIP.

Nationwide peers for ZIP 63366

Similar county violent rate (~0/100K)

Similar Census population (~52,746)

County detail: St. Charles County · State atlas: Missouri

Sources: U.S. Census Bureau (ZIP population, land area, 2020 ZCTA-to-county relationship file, ACS 5-year estimates) and FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10 (county-level crime, attributed via ZIP-to-county crosswalk).

Verify with Census.gov Geography and FBI.gov UCR.

Read our methodology , how this data is sourced, computed, and verified.

Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. This page combines Census ZIP-level figures with a ZIP-to-county crosswalk to attribute FBI UCR crime data honestly, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.